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Feng H, Luo M, Zhu G, Mokeira KD, Yang Y, Lv Y, Tan Q, Lei X, Zeng H, Cheng H, Xu S. A facile electrochemical aptasensor for chloramphenicol detection based on synergistically photosensitization enhanced by SYBR Green I and MoS 2. J Colloid Interface Sci 2024; 672:236-243. [PMID: 38838631 DOI: 10.1016/j.jcis.2024.05.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 05/02/2024] [Accepted: 05/15/2024] [Indexed: 06/07/2024]
Abstract
This study reports the development of a photocatalytic electrochemical aptasensor for the purpose of detecting chloramphenicol (CAP) antibiotic residues in water by utilizing SYBR Green I (SG) and chemically exfoliated MoS2 (ce-MoS2) as synergistically signal-amplification platforms. The Au nanoparticles (AuNPs) were electrodeposited onto the surface of an indium tin oxide (ITO) electrode. After that, the thiolate-modified cDNA, also known as capture DNA, was combined with the aptamer. Subsequently, photosensitized SG molecules and ce-MoS2 nanomaterial were inserted into the groove of the resultant double-stranded DNA (dsDNA). The activation of the photocatalytic process upon exposure to light resulted in the generation of singlet oxygen. The singlet oxygen effectively split the dsDNA, resulting in significant enhancement in the current of [Fe(CN)6]3-/4-. When the CAP was present, both SG molecules and ce-MoS2 broke away from the dsDNA, which turned off the photosensitization response, leading to significant reduction in the current of [Fe(CN)6]3-/4-. Under the optimal conditions, the aptasensor exhibited a linear relationship between the current of [Fe(CN)6]3-/4- with logarithmic concentrations of CAP from 20 to 1000 nM, with a detection of limit (3σ) of 3.391 nM. The aptasensor also demonstrated good selectivity towards CAP in the presence of interfering antibiotics, such as tetracycline, streptomycin, levofloxacin, ciprofloxacin, and sulfadimethoxine. Additionally, the results obtained from the analysis of natural water samples using the proposed aptasensor were consistent with the findings acquired through the use of a liquid chromatograph-mass spectrometer. Therefore, with its simplicity and high selectivity, this aptasensor can potentially detect alternative antibiotics in environmental water samples by replacing the aptamers based on photosensitization.
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Affiliation(s)
- Hui Feng
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China
| | - Meng Luo
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China
| | - Guonian Zhu
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China
| | - Kerage Dorothy Mokeira
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China
| | - Yaoxin Yang
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China
| | - Yongxin Lv
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China
| | - Qing Tan
- Chengdu Ecological and Environmental Monitoring Center of Sichuan Province, Chengdu, Sichuan 610066, China
| | - Xiangwen Lei
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China
| | - Hang Zeng
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China
| | - Hefa Cheng
- MOE Laboratory for Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China.
| | - Shuxia Xu
- College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China; State Environmental Protection Key Laboratory of Synergetic Control and Joint Remediation for Soil & Water Pollution, Chengdu University of Technology, Chengdu 610059, China.
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Shaaban H. Sustainable dispersive liquid-liquid microextraction method utilizing a natural deep eutectic solvent for determination of chloramphenicol in honey: assessment of the environmental impact of the developed method. RSC Adv 2023; 13:5058-5069. [PMID: 36777937 PMCID: PMC9909375 DOI: 10.1039/d2ra08221g] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2022] [Accepted: 01/27/2023] [Indexed: 02/11/2023] Open
Abstract
The greening of pharmaceutical analysis is gaining interest, and different approaches have been proposed, such as minimizing the consumption of hazardous reagents, replacing toxic solvents with safer alternatives, and reducing waste generation. In this work, a natural deep eutectic solvent (NADES) was synthesized and utilized as a green alternative in dispersive liquid-liquid microextraction (DLLME) for the determination of chloramphenicol in honey. Different deep eutectic solvents composed of monoterpenoids and acids were tested. The NADES system composed of menthol and acetic acid at a molar ratio of 1 : 1 was found to be the most appropriate in terms of extraction recovery. Different DLLME parameters including vortex time, centrifugation time, sample volume, and deep eutectic solvent volume were optimized. A determination coefficient of 0.9997 was achieved. Satisfactory recovery ranged from 98.8 to 101.5 with % RSD ≤4.5. The chromatographic performance of the presented method compared with other previously documented methods for determination of chloramphenicol in honey was highlighted. Additionally, the ecological impact of the developed method was assessed employing three tools: the Analytical Eco-scale, the Green Analytical Procedure Index, and the Analytical GREEnness metric. The presented method can be regarded as a green substitute for the traditional methods used for the determination of chloramphenicol in honey.
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Affiliation(s)
- Heba Shaaban
- Department of Pharmaceutical Chemistry, College of Clinical Pharmacy, Imam Abdulrahman Bin Faisal University King Faisal Road, P.O. Box 1982 Dammam 31441 Eastern Province Saudi Arabia +966 546262270
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3
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Fabrication of polydopamine nanoparticles-based electrochemical sensor for geometry-sensitive detection of chloramphenicol. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.117127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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Electrochemical Aptasensor Based on Au Nanoparticles Decorated Porous Carbon Derived from Metal-Organic Frameworks for Ultrasensitive Detection of Chloramphenicol. Molecules 2022; 27:molecules27206842. [DOI: 10.3390/molecules27206842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 10/07/2022] [Accepted: 10/08/2022] [Indexed: 11/16/2022] Open
Abstract
A facile and sensitive electrochemical aptamer sensor (aptasensor) based on Au nanoparticles-decorated porous carbon (AuNPs/PC) composite was developed for the efficient determination of the antibiotic drug chloramphenicol (CAP). AuNPs modified metal-organic framework (AuNPs/ZIF-8) is applied as a precursor to synthesize the porous carbon with homogeneous AuNPs distribution through a direct carbonization step under nitrogen atmosphere. The as-synthesized AuNPs/PC exhibits high surface area and improved conductivity. Moreover, the loading AuNPs could enhance the attachment of the aptamers on the surface of electrode through the Au–S bond. When added to CAP, poorly conductive aptamer-CAP complexes are formed on the sensor surface, which increases the hindrance to electron transfer resulting in a decrease in electrochemical signal. Based on this mechanism, the developed CAP aptasensor represents a wide linear detection range of 0.1 pM to 100 nM with a low detection limit of 0.03 pM (S/N = 3). In addition, the proposed aptasensor was employed for the analysis of CAP in honey samples and provided satisfactory recovery.
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Tolmacheva VV, Savinova VY, Goncharov NO, Dmitrienko SG, Apyari VV, Chernavsky PA, Pankina GV. Sorption of Amphenicols on Magnetic Hypercrosslinked Polystyrene. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024422060267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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MXene-AuNP-Based Electrochemical Aptasensor for Ultra-Sensitive Detection of Chloramphenicol in Honey. Molecules 2022; 27:molecules27061871. [PMID: 35335235 PMCID: PMC8953677 DOI: 10.3390/molecules27061871] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 03/06/2022] [Accepted: 03/08/2022] [Indexed: 02/04/2023] Open
Abstract
A simple and label-free electrochemical aptasensor was developed for ultra-sensitive determination of chloramphenicol (CAP) based on a 2D transition of metal carbides (MXene) loaded with gold nanoparticles (AuNPs). The embedded AuNPs not only inhibit the aggregation of MXene sheets, but also improve the quantity of active sites and electronic conductivity. The aptamers (Apts) were able to immobilize on the MXene–AuNP modified electrode surface through Au–S interaction. Upon specifically binding with CAP with high affinity, the CAP–Apt complexes produced low conductivity on the aptasensor surface, leading to a decreased electrochemical signal. The resulting current change was quantitatively correlated with CAP concentration. Under optimized experimental conditions, the constructed aptasensor exhibited a good linear relationship within a wide range of 0.0001–10 nM and with a low detection limit of 0.03 pM for CAP. Moreover, the developed aptasensor has been applied to the determination of CAP concentration in honey samples with satisfactory results.
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Baikeli Y, Mamat X, He F, Xin X, Li Y, Aisa HA, Hu G. Electrochemical determination of chloramphenicol and metronidazole by using a glassy carbon electrode modified with iron, nitrogen co-doped nanoporous carbon derived from a metal-organic framework (type Fe/ZIF-8). ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2020; 204:111066. [PMID: 32781344 DOI: 10.1016/j.ecoenv.2020.111066] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 07/20/2020] [Accepted: 07/22/2020] [Indexed: 05/02/2023]
Abstract
In this study, an iron-doped metal-organic framework (MOF) Fe/ZIF-8 was synthesized from ZIF-8 at room temperature. Direct carbonization of Fe/ZIF-8 under a nitrogen atmosphere produced nanoporous nitrogen doped carbon nanoparticles decorated with Fe component (Fe/NC). The Fe/NC exhibited a large surface area (1221.185 m2 g-1) and narrow pore-size distribution (3-5 nm). The nanoporous Fe/NC components along with Nafion were used to modify a glassy carbon electrode for the electrochemical determination of chloramphenicol and metronidazole via linear sweep voltammetry. Under optimal conditions, the reduction peak currents (observed at -0.237 V and -0.071 V vs. Ag/AgCl) of these analytes increased linearly with increasing chloramphenicol and metronidazole concentrations in the range of 0.1-100 μM and 0.5-30 μM, with the detection limits estimated to be 31 nM and 165 nM, respectively. This result was attributed to the large surface area, porous structure, high nitrogen content, and as well as the electrocatalytic effect of Fe atoms embeded in the carbon support. The proposed sensor was used for chloramphenicol and metronidazole analysis in samples, providing satisfactory results.
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Affiliation(s)
- Yiliyasi Baikeli
- Key Laboratory of Chemistry of Plant Resources in Arid Regions, State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, 830011, China; University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xamxikamar Mamat
- Key Laboratory of Chemistry of Plant Resources in Arid Regions, State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, 830011, China
| | - Fei He
- Key Laboratory of Chemistry of Plant Resources in Arid Regions, State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, 830011, China
| | - Xuelei Xin
- Key Laboratory of Chemistry of Plant Resources in Arid Regions, State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, 830011, China
| | - Yongtao Li
- Key Laboratory of Chemistry of Plant Resources in Arid Regions, State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, 830011, China
| | - Haji Akbar Aisa
- Key Laboratory of Chemistry of Plant Resources in Arid Regions, State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, 830011, China.
| | - Guangzhi Hu
- Key Laboratory of Chemistry of Plant Resources in Arid Regions, State Key Laboratory Basis of Xinjiang Indigenous Medicinal Plants Resource Utilization, Xinjiang Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Urumqi, 830011, China; Institute for Ecological Research and Pollution Control of Plateau Lakes, School of Ecology and Environmental Science,Yunnan University, Kunming, 650504, China.
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Zuo P, Chen Z, Yu F, Zhang J, Zuo W, Gao Y, Liu Q. An easy synthesis of nitrogen and phosphorus co-doped carbon dots as a probe for chloramphenicol. RSC Adv 2020; 10:32919-32926. [PMID: 35516483 PMCID: PMC9056625 DOI: 10.1039/d0ra04228e] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Accepted: 07/28/2020] [Indexed: 11/21/2022] Open
Abstract
Heteroatom doping in carbon dots (CDs) was found to be an efficient way to regulate the structure of electronic energy levels and enhance the fluorescence characteristics of CDs. Nevertheless, most reported fabrication processes of heteroatom-doped CDs are rigorous and complex. Herein, a facile and novel strategy was developed to rapidly prepare nitrogen and phosphorus co-doped CDs (N,P-CDs) using acetic acid as the carbon source, and arginine, 1,2-ethylenediamine (EDA) and diphosphorus pentoxide as the dopants, respectively. The optical, morphological and structural characterizations of the synthesized N,P-CDs were investigated via UV and photoluminescence spectroscopy, X-ray photoelectron spectroscopy, TEM, and FT-IR spectroscopy. The N,P-CDs display outstanding fluorescence stability under high ionic strength (1.6 M KCl), and long time UV irradiation, indicating that they can be used as favorable candidates for fluorescent probes. The fluorescence of N,P-CDs was selectively quenched by chloramphenicol (CAP) with a short response time. The linear range of the response to CAP was from 0.8 to 70 μM with a limit of detection of 0.36 μM (S/N = 3). Notably, the fabricated N,P-CDs were employed for the highly selective and sensitive detection of CAP in milk samples, indicating their potential applications in biologically related areas.
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Affiliation(s)
- Pengli Zuo
- Central Laboratory, Linyi Central Hospital Linyi 276400 China +86 539 2256919 +86 539 2256919
| | - Zhongguang Chen
- Central Laboratory, Linyi Central Hospital Linyi 276400 China +86 539 2256919 +86 539 2256919
| | - Fengling Yu
- Central Laboratory, Linyi Central Hospital Linyi 276400 China +86 539 2256919 +86 539 2256919
| | - Jinyu Zhang
- Central Laboratory, Linyi Central Hospital Linyi 276400 China +86 539 2256919 +86 539 2256919
| | - Wei Zuo
- Central Laboratory, Linyi Central Hospital Linyi 276400 China +86 539 2256919 +86 539 2256919
| | - Yanli Gao
- Central Laboratory, Linyi Central Hospital Linyi 276400 China +86 539 2256919 +86 539 2256919
| | - Qingyou Liu
- Linyi Center for Disease Prevention and Control Linyi 276000 China
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Martini E, Tomassetti M, Angeloni R, Castrucci M, Campanella L. A Suitable Immunosensor for Chloramphenicol Determination: Study of Two Different Competitive Formats. CURR PHARM ANAL 2020. [DOI: 10.2174/1573412915666190225163036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
deep analytical study was performed on two different formats based on a
“competitive” ELISA-type assay to develop a suitable, sensitive and cheap immune device for
chloramphenicol determination that could be advantageously applied to the analysis of real matrices
(pharmaceutical, food and environmental).
Methods:
To this purpose peroxidase enzyme as a marker and an amperometric electrode for hydrogen
peroxide, as a transducer, were used. Through the first competitive format, chloramphenicol determination
was based on the competition between chloramphenicol and conjugated with biotin-avidinperoxidase
chloramphenicol, both free in solution, for anti-chloramphenicol immobilized in the membrane,
while the second competitive format was based on the competition between free in solution chloramphenicol
and immobilized in membrane one, for anti-chloramphenicol biotin-avidin-peroxidase
conjugated free in solution.
Results:
The immunosensor was optimized by comparing the two used different “competitive” working
formats on the basis of respective Kaff values, that were found to be about 105 and 104 (mol L-1)-1. The
developed immune device displayed good selectivity for Chloramphenicol and LOD (limit of detection)
was of the order of 10-9 mol L-1. The immunosensor was also used to test the presence of Chloramphenicol
in real matrices such as cow milk, river wastewater and pharmaceutical formulations; recovery
tests, using the standard addition method, gave satisfactory results.
Conclusion:
The results proved the validity of this immune device based on the competition between
chloramphenicol and conjugated chloramphenicol obtained using biotin-avidin-peroxidase format, by
which it is possible to carry out the analysis of chloramphenicol in milk and in river waste-waters with a
% RSD ≤ 5 and with recovery values between 96% and 103%.
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Affiliation(s)
- Elisabetta Martini
- Department of Chemistry, University of Rome “Sapienza”, P.le A. Moro 5, Rome 00185, Italy
| | - Mauro Tomassetti
- Department of Chemistry, University of Rome “Sapienza”, P.le A. Moro 5, Rome 00185, Italy
| | - Riccardo Angeloni
- Department of Chemistry, University of Rome “Sapienza”, P.le A. Moro 5, Rome 00185, Italy
| | - Mauro Castrucci
- Department of Chemistry, University of Rome “Sapienza”, P.le A. Moro 5, Rome 00185, Italy
| | - Luigi Campanella
- Department of Chemistry, University of Rome “Sapienza”, P.le A. Moro 5, Rome 00185, Italy
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Patyra E, Kwiatek K. Quantification and Analysis of Trace Levels of Phenicols in Feed by Liquid Chromatography–Mass Spectrometry. Chromatographia 2020. [DOI: 10.1007/s10337-020-03890-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
AbstractA sensitive and reliable method using liquid chromatography–negative electrospray ionization mass spectrometry was developed for the simultaneous determination of chloramphenicol, florfenicol, and thiamphenicol at trace levels in animal feed. The analytes were extracted from grinded feed with ethyl acetate. Further the ethyl acetate was evaporated, residue resuspended in Milli-Q water, defatted with n-hexane, and solid phase extracted using BondELUT C18 cartridges. Separation was carried out on a C6 phenyl column with a mobile phase consisting of 0.1% formic acid in Milli-Q water and acetonitrile. The detector response was linear over the tested concentration range from 100 to 1000 µg kg−1. The recovery values for all analytes in feed were higher than 79% with RSD for repeatability and reproducibility in the ranges of 4.5–10.9% and 8.4–13.5%, respectively. CCα and CCβ varied between 76.8 and 86.1 µg kg−1, and between 111.3 and 159.9 µg kg−1, respectively. The results showed that this method is effective for the quantification of phenicols in non-target feed.
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Rimkus GG, Huth T, Harms D. Screening of stereoisomeric chloramphenicol residues in honey by ELISA and CHARM ® II test - the potential risk of systematically false-compliant (false negative) results. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2019; 37:94-103. [PMID: 31697202 DOI: 10.1080/19440049.2019.1682685] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Chloramphenicol (CAP) is a broad-spectrum antibiotic used widely both in human and in veterinary medication but due to adverse health effects is not authorised anymore for use in food-producing animals in many countries. CAP molecule contains two asymmetric centers resulting in four para-CAP stereoisomers, but only the RR-CAP enantiomer is bioactive with significant antimicrobial activity. In this study the detection of the four CAP stereoisomers was tested by five commercial ELISA kits and the Charm® II Chloramphenicol Test. These immunoassay tests are commonly used and widely accepted for screening of CAP residues in foods of animal origin, including honey. The test results definitely show that SS-CAP residues are not detected; even high SS-CAP concentrations are missed due to the lack of any cross reactivity and the high specificity of the CAP antibodies to RR-CAP. In former studies chiral LC-MS/MS analysis indicated clearly that honey samples with raised CAP concentrations often contain the SS-CAP enantiomer in addition to the bioactive RR-CAP. According to this study, the investigated screening tests carry the risk of systematically false-compliant (false negative) results for CAP and a discrepancy between LC-MS/MS and ELISA/Charm® test results. As a consequence of this study, it is recommended that immunoassay manufacturers develop and use CAP antibodies which also bind SS-CAP. The origin of SS-CAP residues in honey samples is discussed and general toxicological and regulatory aspects of CAP stereoisomers are raised.
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Affiliation(s)
- Gerhard G Rimkus
- Laboratory Department of Residues and Contaminants, Intertek Food Services GmbH, Bremen, Germany
| | - Tina Huth
- Laboratory Department of Residues and Contaminants, Intertek Food Services GmbH, Bremen, Germany
| | - Diedrich Harms
- Laboratory Department of Residues and Contaminants, Intertek Food Services GmbH, Bremen, Germany
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Application of Ultrasound-Assisted Extraction Followed by Solid-Phase Extraction Followed by Dispersive Liquid-Liquid Microextraction for the Determination of Chloramphenicol in Chicken Meat. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-017-1048-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Rimkus GG, Hoffmann D. Enantioselective analysis of chloramphenicol residues in honey samples by chiral LC-MS/MS and results of a honey survey. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2017; 34:950-961. [DOI: 10.1080/19440049.2017.1319073] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Gerhard G. Rimkus
- Laboratory Department of Residues and Organic Contaminants, Intertek Food Services GmbH, Bremen, Germany
| | - Dirk Hoffmann
- Laboratory Department of Residues and Organic Contaminants, Intertek Food Services GmbH, Bremen, Germany
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Multi-class method for the determination of nitroimidazoles, nitrofurans, and chloramphenicol in chicken muscle and egg by dispersive-solid phase extraction and ultra-high performance liquid chromatography-tandem mass spectrometry. Food Chem 2017; 217:182-190. [DOI: 10.1016/j.foodchem.2016.08.097] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2016] [Revised: 05/31/2016] [Accepted: 08/25/2016] [Indexed: 11/17/2022]
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15
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Guidi LR, Tette PA, Fernandes C, Silva LH, Gloria MBA. Advances on the chromatographic determination of amphenicols in food. Talanta 2017; 162:324-338. [DOI: 10.1016/j.talanta.2016.09.068] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2016] [Revised: 09/28/2016] [Accepted: 09/29/2016] [Indexed: 11/28/2022]
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Karthik R, Govindasamy M, Chen SM, Mani V, Lou BS, Devasenathipathy R, Hou YS, Elangovan A. Green synthesized gold nanoparticles decorated graphene oxide for sensitive determination of chloramphenicol in milk, powdered milk, honey and eye drops. J Colloid Interface Sci 2016; 475:46-56. [DOI: 10.1016/j.jcis.2016.04.044] [Citation(s) in RCA: 97] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 04/26/2016] [Accepted: 04/26/2016] [Indexed: 11/16/2022]
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Du XJ, Zhou XN, Li P, Sheng W, Ducancel F, Wang S. Development of an Immunoassay for Chloramphenicol Based on the Preparation of a Specific Single-Chain Variable Fragment Antibody. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:2971-2979. [PMID: 27003441 DOI: 10.1021/acs.jafc.6b00639] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Specific antibodies are essential for the immune detection of small molecule contaminants. In the present study, the heavy and light variable regions (V(H )and V(L)) of the immunoglobulin genes from a hybridoma secreting a chloramphenicol (CAP)-specific monoclonal antibody (mAb) were cloned and sequenced. In addition, the light and heavy chains obtained from the monoclonal antibody were separated using SDS-PAGE and analyzed using Orbitrap mass spectrometry. The results of DNA sequencing and mass spectrometry analysis were compared, and the V(H) and V(L) chains specific for CAP were determined and used to construct a single-chain variable fragment (scFv). This fragment was recombinantly expressed as a soluble scFv-alkaline phosphatase fusion protein and used to develop a direct competitive ELISA. Compared with the parent mAb, scFv exhibits lower sensitivity but better food matrix resistance. This work highlights the application of engineered antibodies for CAP detection.
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Affiliation(s)
- Xin-jun Du
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology , Tianjin 300457, China
| | - Xiao-nan Zhou
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology , Tianjin 300457, China
| | - Ping Li
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology , Tianjin 300457, China
| | - Wei Sheng
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology , Tianjin 300457, China
| | - Frédéric Ducancel
- Pharmacology and Immune Analysis Department, CEA/Saclay , F-91191 Gif-sur-Yvette, France
| | - Shuo Wang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology , Tianjin 300457, China
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Lu Y, Yao H, Li C, Han J, Tan Z, Yan Y. Separation, concentration and determination of trace chloramphenicol in shrimp from different waters by using polyoxyethylene lauryl ether-salt aqueous two-phase system coupled with high-performance liquid chromatography. Food Chem 2016; 192:163-70. [DOI: 10.1016/j.foodchem.2015.06.086] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 01/04/2015] [Accepted: 06/24/2015] [Indexed: 11/28/2022]
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19
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Biomimetic piezoelectric quartz crystal sensor with chloramphenicol-imprinted polymer sensing layer. Talanta 2015; 144:1260-5. [DOI: 10.1016/j.talanta.2015.08.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2015] [Revised: 07/29/2015] [Accepted: 08/01/2015] [Indexed: 11/19/2022]
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Sniegocki T, Gbylik-Sikorska M, Posyniak A. Transfer of chloramphenicol from milk to commercial dairy products – Experimental proof. Food Control 2015. [DOI: 10.1016/j.foodcont.2015.04.028] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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21
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Amjadi M, Jalili R, Manzoori JL. A sensitive fluorescent nanosensor for chloramphenicol based on molecularly imprinted polymer-capped CdTe quantum dots. LUMINESCENCE 2015; 31:633-9. [DOI: 10.1002/bio.3003] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2015] [Revised: 04/22/2015] [Accepted: 07/11/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Mohammad Amjadi
- Department of Analytical Chemistry; Faculty of Chemistry, University of Tabriz; Tabriz 5166616471 Iran
| | - Roghayeh Jalili
- Department of Analytical Chemistry; Faculty of Chemistry, University of Tabriz; Tabriz 5166616471 Iran
| | - Jamshid L. Manzoori
- Department of Analytical Chemistry; Faculty of Chemistry, University of Tabriz; Tabriz 5166616471 Iran
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22
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Zhai H, Liang Z, Chen Z, Wang H, Liu Z, Su Z, Zhou Q. Simultaneous detection of metronidazole and chloramphenicol by differential pulse stripping voltammetry using a silver nanoparticles/sulfonate functionalized graphene modified glassy carbon electrode. Electrochim Acta 2015. [DOI: 10.1016/j.electacta.2015.03.140] [Citation(s) in RCA: 58] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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23
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Zhou B, Zhang J, Fan J, Zhu L, Zhang Y, Jin J, Huang B. A new sensitive method for the detection of chloramphenicol in food using time-resolved fluoroimmunoassay. Eur Food Res Technol 2014. [DOI: 10.1007/s00217-014-2363-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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24
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25
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Karageorgou E, Samanidou V. Youden test application in robustness assays during method validation. J Chromatogr A 2014; 1353:131-9. [DOI: 10.1016/j.chroma.2014.01.050] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 01/15/2014] [Accepted: 01/17/2014] [Indexed: 11/25/2022]
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26
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Yadav SK, Agrawal B, Chandra P, Goyal RN. In vitro chloramphenicol detection in a Haemophilus influenza model using an aptamer-polymer based electrochemical biosensor. Biosens Bioelectron 2013; 55:337-42. [PMID: 24412768 DOI: 10.1016/j.bios.2013.12.031] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 11/22/2013] [Accepted: 12/11/2013] [Indexed: 10/25/2022]
Abstract
A sensitive and selective electrochemical biosensor is developed for the determination of chloramphenicol (CAP) exploring its direct electron transfer processes in in-vitro model and pharmaceutical samples. This biosensor exploits a selective binding of CAP with aptamer, immobilized onto the poly-(4-amino-3-hydroxynapthalene sulfonic acid) (p-AHNSA) modified edge plane pyrolytic graphite. The electrochemical reduction of CAP was observed in a well-defined peak. A quartz crystal microbalance (QCM) study is performed to confirm the interaction between the polymer film and the aptamer. Cyclic voltammetry (CV) and square wave voltammetry (SWV) were used to detect CAP. The in-vitro CAP detection is performed using the bacterial strain of Haemophilus influenza. A significant accumulation of CAP by the drug sensitive H. influenza strain is observed for the first time in this study using a biosensor. Various parameters affecting the CAP detection in standard solution and in in vitro detection are optimized. The detection of CAP is linear in the range of 0.1-2500 nM with the detection limit and sensitivity of 0.02 nM and 0.102 µA/nM, respectively. CAP is also detected in the presence of other common antibiotics and proteins present in the real sample matrix, and negligible interference is observed.
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Affiliation(s)
- Saurabh K Yadav
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Bharati Agrawal
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India
| | - Pranjal Chandra
- Amity Institute of Biotechnology, Amity University Uttar Pradesh, Gautam Buddha Nagar, Noida 201303, Uttar Pradesh, India
| | - Rajendra N Goyal
- Department of Chemistry, Indian Institute of Technology Roorkee, Roorkee 247667, India.
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27
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Sadeghi S, Jahani M. Selective solid-phase extraction using molecular imprinted polymer sorbent for the analysis of Florfenicol in food samples. Food Chem 2013; 141:1242-51. [DOI: 10.1016/j.foodchem.2013.04.027] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2012] [Revised: 02/05/2013] [Accepted: 04/07/2013] [Indexed: 10/26/2022]
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28
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Kolanović BS, Bilandžić N, Varenina I, Božić D. Tylosin content in meat and honey samples over a two-year period in Croatia. J Immunoassay Immunochem 2013; 35:37-47. [PMID: 24063615 DOI: 10.1080/15321819.2013.784198] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
A total of 646 meat and 96 honey samples were examined over a 2-year period for the presence of tylosin residues. ELISA method used was validated according to the criteria of Commission Decision 2002/657/EC established for qualitative screening methods. The CCβ values were 32.1 µg kg⁻¹ in muscle and 24.4 µg kg⁻¹ in honey. The recoveries from spiked samples ranged from 66.4-118.6%, with a coefficient of variation between 12.6% and 18.6%. All the investigated samples showed no presence of tylosin. Calculated estimated daily intakes show exposure levels lower than the acceptable daily intakes set by World Health Organization.
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Affiliation(s)
- Božica S Kolanović
- a Department of Veterinary Public Health, Laboratory for Residue Control , Croatian Veterinary Institute , Zagreb , Croatia
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29
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Determination of Chloramphenicol in Honey, Shrimp, and Poultry Meat with Liquid Chromatography–Mass Spectrometry: Validation of the Method According to Commission Decision 2002/657/EC. FOOD ANAL METHOD 2013. [DOI: 10.1007/s12161-013-9596-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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30
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A simple and sensitive electrochemical aptasensor for determination of Chloramphenicol in honey based on target-induced strand release. J Electroanal Chem (Lausanne) 2012. [DOI: 10.1016/j.jelechem.2012.10.016] [Citation(s) in RCA: 67] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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31
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Lu Y, Zheng T, He X, Lin X, Chen L, Dai Z. Rapid determination of chloramphenicol in soft-shelled turtle tissues using on-line MSPD-HPLC–MS/MS. Food Chem 2012. [DOI: 10.1016/j.foodchem.2012.02.115] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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32
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Cheng N, Gao H, Deng J, Wang B, Xu R, Cao W. Removal of Chloramphenicol by Macroporous Adsorption Resins in Honey: A Novel Approach on Reutilization of Antibiotics Contaminated Honey. J Food Sci 2012; 77:T169-72. [DOI: 10.1111/j.1750-3841.2012.02868.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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33
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Ma C, Chen H, Sun N, Ye Y, Chen H. Preparation of Molecularly Imprinted Polymer Monolith with an Analogue of Thiamphenicol and Application to Selective Solid-Phase Microextraction. FOOD ANAL METHOD 2012. [DOI: 10.1007/s12161-012-9368-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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34
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Alechaga É, Moyano E, Galceran MT. Ultra-high performance liquid chromatography-tandem mass spectrometry for the analysis of phenicol drugs and florfenicol-amine in foods. Analyst 2012; 137:2486-94. [DOI: 10.1039/c2an16052h] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Li J, Chen H, Chen H, Ye Y. Selective determination of trace thiamphenicol in milk and honey by molecularly imprinted polymer monolith microextraction and high-performance liquid chromatography. J Sep Sci 2011; 35:137-44. [DOI: 10.1002/jssc.201100767] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Revised: 09/25/2011] [Accepted: 09/26/2011] [Indexed: 11/11/2022]
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36
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Yibar A, Cetinkaya F, Soyutemiz G. ELISA screening and liquid chromatography-tandem mass spectrometry confirmation of chloramphenicol residues in chicken muscle, and the validation of a confirmatory method by liquid chromatography-tandem mass spectrometry. Poult Sci 2011; 90:2619-26. [DOI: 10.3382/ps.2011-01564] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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37
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Simultaneous determination of thiamphenicol, florfenicol and florfenicol amine in eggs by reversed-phase high-performance liquid chromatography with fluorescence detection. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:2351-4. [DOI: 10.1016/j.jchromb.2011.06.027] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2011] [Revised: 06/15/2011] [Accepted: 06/15/2011] [Indexed: 11/17/2022]
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38
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Kolanović BS, Bilandžić N, Varenina I. Validation of a multi-residue enzyme-linked immunosorbent assay for qualitative screening of corticosteroids in liver, urine and milk. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2011; 28:1175-86. [DOI: 10.1080/19440049.2011.580457] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- B. Solomun Kolanović
- a Department of Veterinary Public Health, Laboratory for Residue Control , Croatian Veterinary Institute, Savska cesta 143 , HR-10000 Zagreb , Croatia
| | - N. Bilandžić
- a Department of Veterinary Public Health, Laboratory for Residue Control , Croatian Veterinary Institute, Savska cesta 143 , HR-10000 Zagreb , Croatia
| | - I. Varenina
- a Department of Veterinary Public Health, Laboratory for Residue Control , Croatian Veterinary Institute, Savska cesta 143 , HR-10000 Zagreb , Croatia
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39
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Moragues F, Igualada C, León N. Validation of the Determination of Chloramphenicol Residues in Animal Feed by Liquid Chromatography with an Ion Trap Detector Based on European Decision 2002/657/EC. FOOD ANAL METHOD 2011. [DOI: 10.1007/s12161-011-9261-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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40
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Wang T, Tong J, Sun M, Chen L. Fast and selective extraction of chloramphenicol from soil by matrix solid-phase dispersion using molecularly imprinted polymer as dispersant. J Sep Sci 2011; 34:1886-92. [DOI: 10.1002/jssc.201100046] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2011] [Revised: 05/02/2011] [Accepted: 05/03/2011] [Indexed: 11/08/2022]
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41
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Solomun B, Bilandzic N, Varenina I, Scortichini G. Validation of an enzyme-linked immunosorbent assay for qualitative screening of neomycin in muscle, liver, kidney, eggs and milk. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2011; 28:11-8. [PMID: 21082465 DOI: 10.1080/19440049.2010.527376] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
A rapid and sensitive enzyme-linked immunosorbent assay (ELISA) was used for the qualitative screening analysis of neomycin in food of animal origin (muscle, liver, kidney, eggs and milk) at levels corresponding to the European Union maximum residue limit (MRL) set for this substance. The method validation was performed according to the criteria of Commission Decision 2002/657/EC established for qualitative screening methods. In this regard, the following parameters were determined: detection capability (CCβ), specificity, detection limit (LOD), quantification limit (LOQ), recovery, precision, linearity and ruggedness. LODs ranged from 5.7 microg kg(-1) in kidney to 29.3 microg kg(-1) in milk; LOQs ranged from 11.4 microg kg(-1) in kidney to 59.7 microkg(-1) in eggs. The recoveries from spiked samples at the MRL, half the MRL and double the MRL levels ranged from 65.8% to 122.8%, with a coefficient of variation (CV) between 5.9% and 28.6%. The CCβ value was less than the MRL for all examined matrices. Moderate variations of some critical factors in the sample pretreatment for muscle, milk and eggs were deliberately introduced for ruggedness evaluation and had a slight but not statistically significant effect on method performance. The proposed method is suitable for qualitative screening analysis of neomycin in the above-mentioned food in conformity with current European Union performance requirements.
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Affiliation(s)
- B Solomun
- Department of Veterinary Public Health, Laboratory for Residue Control, Croatian Veterinary Institute, Savska cesta 143, HR-10000 Zagreb, Croatia
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42
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A competitive dual-label time-resolved fluoroimmunoassay for the simultaneous determination of chloramphenicol and ractopamine in swine tissue. ACTA ACUST UNITED AC 2011. [DOI: 10.1007/s11434-011-4412-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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43
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Han J, Wang Y, Yu C, Li C, Yan Y, Liu Y, Wang L. Separation, concentration and determination of chloramphenicol in environment and food using an ionic liquid/salt aqueous two-phase flotation system coupled with high-performance liquid chromatography. Anal Chim Acta 2011; 685:138-45. [DOI: 10.1016/j.aca.2010.11.033] [Citation(s) in RCA: 96] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2010] [Revised: 11/13/2010] [Accepted: 11/16/2010] [Indexed: 11/17/2022]
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44
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Sichilongo KF, Famuyiwa SO, Kibechu R. Pre-electrospray ionisation manifold methylation and post-electrospray ionisation manifold cleavage/ion cluster formation observed during electrospray ionisation of chloramphenicol in solutions of methanol and acetonitrile for liquid chromatography-mass spectrometry employing a commercial quadrupole ion trap mass analyser. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2011; 17:255-264. [PMID: 21828416 DOI: 10.1255/ejms.1113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We have observed unusual mass spectra of chloramphenicol (CAP) in solutions of methanol or acetonitrile showing intense ions at m/z 297, m/z 311, m/z 325 and m/z 339. The observed ions were different from those which are traditionally observed in the full scan ESI mass spectra of CAP with ions of m/z 321, m/z 323 and m/z 325. We have evidence to show that this process starts with offline methylation of CAP in solutions of methanol or acetonitrile to give m/z 339. Investigations using nuclear magnetic resonance (NMR) spectroscopy showed that there is a methylene group somewhere within the CAP molecule but not attached to any of the carbon atoms when the CAP is dissolved in methanol or acetonitrile before infusion into the mass spectrometer. The possible locations of attachment were speculated to be the electronegative atoms apart from the chlorine atoms due to valence considerations. The methylene group is attached to the nitrogen atom and forms a bond as observed in the MS/MS spectra of m/z 297, m/z 311, m/z 325 and m/z 339 which give m/z 183 as the base peak in all cases. Further experiments showed that there is cleavage of the methylated CAP molecule followed by cluster ion formation involving addition of methylene groups to the CAP fragment with m/z 183 to produce ions of m/z including m/z 297, m/z 311, m/z 325 and m/z 339. This process occurs in the mass spectrometer in the region housing the tube lens and is triggered when the ions are accelerated through this region by application of a negative tube lens offset voltage. This region affords collision of the charged droplets with a collision gas in this case nitrogen to strip the droplets of their solvent molecules. Experiments to follow the intensities of m/z 183, m/z 311, m/z 321, m/z 323, m/z 325 and m/z 339 as the tube lens offset voltage was varied were done in which the intensities of m/z 311, m/z 325 and m/z 339 were observed to be at their peak when the tube lens offset voltage was set at -40 V. When the tube lens offset voltage is swung to +40 V, thus decelerating the ions through the capillary skimmer region via the tube lens, the traditionally observed spectra with m/z 321, m/z 323 and m/z 325 were observed.
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Affiliation(s)
- Kwenga F Sichilongo
- University of Botswana, Department of Chemistry, PB UB 00704, Gaborone, Botswana.
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45
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Song HM, Kim BJ, Jeong H, Ahn SH. Accurate determination of chloramphenicol in meat by isotope dilution liquid chromatography mass spectrometry (ID-LC/MS). ANALYTICAL SCIENCE AND TECHNOLOGY 2010. [DOI: 10.5806/ast.2010.23.6.524] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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46
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Han J, Wang Y, Yu CL, Yan YS, Xie XQ. Extraction and determination of chloramphenicol in feed water, milk, and honey samples using an ionic liquid/sodium citrate aqueous two-phase system coupled with high-performance liquid chromatography. Anal Bioanal Chem 2010; 399:1295-304. [PMID: 21063686 DOI: 10.1007/s00216-010-4376-2] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2010] [Revised: 10/24/2010] [Accepted: 10/24/2010] [Indexed: 10/18/2022]
Abstract
A green, simple, non-toxic, and sensitive sample pretreatment procedure coupled with high-performance liquid chromatography (HPLC) was developed for the analysis of chloramphenicol (CAP) that exploits an aqueous two-phase system based on imidazolium ionic liquid (1-butyl-3-methylimidazolium tetrafluoroborate, [Bmim]BF(4)) and organic salt (Na(3)C(6)H(5)O(7)) using a liquid-liquid extraction technique. The influence factors on partition behaviors of CAP were studied, including the type and amount of salts, the pH value, the volume of [Bmim]BF(4), and the extraction temperature. Extraction efficiency of the CAP was found to increase with increasing temperature and the volume of [Bmim]BF(4). Thermodynamic studies indicated that hydrophobic interactions were the main driving force, although electrostatic interactions and salting-out effects were also important for the transfer of the CAP. Under the optimal conditions, 90.1% of the CAP could be extracted into the ionic liquid-rich phase in a single-step extraction. This method was practical when applied to the analysis of CAP in feed water, milk, and honey samples with a linear range of 2~1,000 ng mL(-1). The method yielded a limit of detection of 0.3 ng mL(-1) and a limit of quantification of 1.0 ng mL(-1). The recovery of CAP was 90.4-102.7% from aqueous samples of real feed water, milk, and honey samples by the proposed method. This novel process is much simpler and more environmentally friendly and is suggested to have important applications for the separation of antibiotics.
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Affiliation(s)
- Juan Han
- School of Environment, School of Chemistry and Chemical Engineering, Jiangsu University, No. 301, Xuefu Road, Zhenjiang, Jiangsu 212013, China.
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47
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Aresta A, Bianchi D, Calvano C, Zambonin C. Solid phase microextraction—Liquid chromatography (SPME-LC) determination of chloramphenicol in urine and environmental water samples. J Pharm Biomed Anal 2010; 53:440-4. [DOI: 10.1016/j.jpba.2010.05.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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48
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Hu L, Zuo P, Ye BC. Multicomponent mesofluidic system for the detection of veterinary drug residues based on competitive immunoassay. Anal Biochem 2010; 405:89-95. [DOI: 10.1016/j.ab.2010.05.034] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2010] [Revised: 05/15/2010] [Accepted: 05/28/2010] [Indexed: 11/30/2022]
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49
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Development of a multi-class method for the quantification of veterinary drug residues in feedingstuffs by liquid chromatography-tandem mass spectrometry. J Chromatogr A 2010; 1217:6394-404. [PMID: 20810120 DOI: 10.1016/j.chroma.2010.08.024] [Citation(s) in RCA: 114] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2010] [Revised: 08/02/2010] [Accepted: 08/09/2010] [Indexed: 11/21/2022]
Abstract
A simple multi-residue method was developed for detecting and quantifying 33 analytes from 13 classes of antibiotics (tetracyclines (3), quinolones (7), penicillins (3), ionophore coccidiostats (7), macrolides (3), sulfonamides (1), quinoxalines (2), phenicols (2), lincosamides (1), diaminopyrimidines (1), polypeptides (1), streptogramins (1) and pleuromutilins (1)) in animal feeds. Extraction and clean-up procedures were optimized with spiked piglet feed. Samples were extracted by ultrasonic-assisted extraction with a mixture of methanol/acetonitrile/McIlvaine buffer at pH 4.6 (37.5/37.5/25, v/v/v) containing 0.3% of EDTA-Na(2), followed by a clean up using a dispersive solid-phase extraction (d-SPE) with PSA (primary secondary amine). Detection of antibiotics was achieved by liquid chromatography-electrospray tandem mass spectrometry (LC-ESI-MS/MS) within 28 min using both positive and negative ESI mode. Average recoveries ranged from 51% (oxytetracycline) to 116% (tilmicosin) with associated relative standard deviations of 7.3% and 9.0% and an overall mean of 87%. Limits of quantification ranged from 3.8 ngg(-1) (lincomycin) to 65.0 ngg(-1) (bacitracin). Following optimization, the method was further verified for bovine and lamb feeding stuffs; negative matrix effects were evaluated and overcome by a standard addition method.
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50
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Simultaneous determination of thiamphenicol, florfenicol and florfenicol amine in swine muscle by liquid chromatography–tandem mass spectrometry with immunoaffinity chromatography clean-up. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:207-12. [DOI: 10.1016/j.jchromb.2009.10.002] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2009] [Revised: 09/29/2009] [Accepted: 10/01/2009] [Indexed: 11/18/2022]
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